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import math


class Main():

    # def __init__(self):

    #     super().__init__()

    def menu(self):
        print('1. Calculate the volume of a sphere')
        print('2. Calculate the Area of a Triangle')
        print('3. Show odds and their squares between 1-50')
        print('4. Quit')
        option = int(input("Please enter the number of an option you want to do: "))
        if option == 1:
            sphere = Main.sphere(self)
        elif option == 2:
            triangle = Main.triangle(self)
        elif option == 3:
            squares = Main.squares(self)
        elif option == 4:
            print("Thank you!!")
            option2 = str(input("Do you want to try again? "))
            if option2 == "yes" or option2 == "y" or option2 == "YES":
                Main.menu(self)
            elif option2 == "no":
                import sys
                print("Okay then")
                sys.exit()

    def sphere(self):
        radius = float(input('Please enter the radius of the circle: '))
        if radius > 0:
            volume = 4 / 3 * math.pi * radius * radius * radius
            print('Radius:', format(radius,'10.2f'))
            print('Volume:', format(volume,'10.2f'))
        else:
            print ('Do not enter 0 or lower')

        return radius

    def triangle(self):
        base = float(input('What is the base of the triangle? '))
        height = float(input('What is the height of the triangle? '))
        area = base * height * .5
        print('Height:', format(height, '15.2f'))
        print('Base:', format(base, '15.2f'))
        print('Triangle Area:', format(area, '15.2f'))
        return base, height, area

    def squares(self):
        for odds in range(1, 50, 2):
            root = math.sqrt(odds)
            print(odds, '\t', root)


if __name__ == "__main__":
    main = Main()
    main.menu()